CAREER: Static, Dynamic and Kinematic Analysis and Optimization of Tensegrity Structures through Cellular Morphogenesis

职业：通过细胞形态发生对张拉整体结构进行静态、动态和运动学分析和优化

• 批准号: 2238724
• 负责人: Landolf Rhode-Barbarigos
• 金额: $ 58.98万
• 依托单位: University of Miami
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-08-01 至 2028-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2238724&HistoricalAwards=false
• 关键词: CAREER; Static; Dynamic; Kinematic; Analysis

This Faculty Early Career Development (CAREER) award supports research that will focus on the generation, analysis and optimization of tensegrity structures. Tensegrity represents a class of structures composed of members in compression and tension in a self-equilibrated state. In this project, tensegrity systems are studied to conceive rapidly erected structures for traditional civil applications. However, the outcomes of this award extend beyond architecture and structures as tensegrity systems have been explored for a wide variety of engineering applications including metamaterials, planetary landers, soft robotics, as well as to model the mechanical behavior of biological cells. Although tensegrity structures have received significant interest among scientists and engineers, there is still no unifying theory on their generation and behavior. This research project thus seeks to develop a morphological framework that integrates design criteria with assembly and kinematics while providing architectural design freedom. The framework enables control over the behavior of tensegrity structures by decomposing complex systems into elementary tensegrity units. Inspired by tensegrity’s artistic origin, the research will also be complemented by developing learning modules centered on objects at the intersection of art, science, and engineering, exploring object-based learning in collaboration with educational experts and students.The goal of the research project is to develop a theoretical understanding of how morphology can be used to define the stability, equilibrium, deployability, structural response, sensing, and control in complex tensegrity structures. Specifically, the research approach includes a) understanding the relationship between cellular composition and mechanical behavior in tensegrity structures, b) enhancing the construction, analysis, sensing and control of tensegrity structures, and c) deriving a morphological framework for the generation and optimization of tensegrity structures with predefined and transformable forms, as well as tunable mechanical behaviors. To accomplish these objectives, a method that links topology identification and form finding through the cellular composition of tensegrity systems with cells being elementary tensegrity units will be explored. It is hypothesized that tuning the cellular composition of tensegrity structures along with their structural parameters can lead to desired shapes, optimized mechanical performance, and advantageous control methods. This project will allow the PI to advance the knowledge base in tensegrity systems and establish his long-term career in structural morphology.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该学院早期职业发展（CAREER）奖支持将专注于张拉整体结构的生成，分析和优化的研究。张拉整体结构是一种由受压和受拉构件组成的自平衡结构。在这个项目中，张拉整体系统进行了研究，构思快速架设结构的传统民用应用。然而，该奖项的成果超出了建筑和结构，因为张拉整体系统已被探索用于各种工程应用，包括超材料，行星着陆器，软机器人，以及模拟生物细胞的机械行为。虽然张拉整体结构已经引起了科学家和工程师的极大兴趣，但仍然没有统一的理论来解释其产生和行为。因此，本研究项目旨在开发一种形态框架，将设计标准与装配和运动学相结合，同时提供建筑设计自由。该框架能够通过将复杂系统分解为基本张拉整体单元来控制张拉整体结构的行为。受张拉整体的艺术起源的启发，该研究还将通过开发以艺术，科学和工程交叉点的物体为中心的学习模块来补充，与教育专家和学生合作探索基于物体的学习。该研究项目的目标是从理论上理解形态学如何用于定义稳定性，平衡性，可展开性，结构响应，传感，复杂张拉整体结构的控制。具体而言，研究方法包括：a）理解张拉整体结构中细胞组成与力学行为之间的关系，B）增强张拉整体结构的构造、分析、传感和控制，以及c）导出用于生成和优化具有预定义和可变换形式以及可调力学行为的张拉整体结构的形态框架。为了实现这些目标，将探索一种通过张拉整体系统的细胞组成将拓扑识别和找形联系起来的方法，其中细胞是基本张拉整体单元。据推测，调整细胞组成的张拉整体结构沿着与他们的结构参数可以导致所需的形状，优化的机械性能，和有利的控制方法。该项目将使PI能够推进张拉整体系统的知识基础，并建立他在结构形态学方面的长期职业生涯。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。